<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <script src="js/Interface.js"></script>
    <script type="text/javascript">
       //封装与信息隐藏
       //信息隐藏是目的，封装是手段

    </script>
</head>
<body>

</body>
</html>